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  </script></head><body><div id="wrapper"><header><div id="header"><div><div><div class="logo noPrint"><a href="http://tomcat.apache.org/"><img alt="Tomcat Home" src="./images/tomcat.png"></a></div><div style="height: 1px;"></div><div class="asfLogo noPrint"><a href="http://www.apache.org/" target="_blank"><img src="./images/asf-logo.svg" alt="The Apache Software Foundation" style="width: 266px; height: 83px;"></a></div><h1>Apache Tomcat 8</h1><div class="versionInfo">
          Version 8.5.31,
          <time datetime="2018-04-27">Apr 27 2018</time></div><div style="height: 1px;"></div><div style="clear: left;"></div></div></div></div></header><div id="middle"><div><div id="mainLeft" class="noprint"><div><nav><div><h2>Links</h2><ul><li><a href="index.html">Docs Home</a></li><li><a href="http://wiki.apache.org/tomcat/FAQ">FAQ</a></li><li><a href="#comments_section">User Comments</a></li></ul></div><div><h2>User Guide</h2><ul><li><a href="introduction.html">1) Introduction</a></li><li><a href="setup.html">2) Setup</a></li><li><a href="appdev/index.html">3) First webapp</a></li><li><a href="deployer-howto.html">4) Deployer</a></li><li><a href="manager-howto.html">5) Manager</a></li><li><a href="host-manager-howto.html">6) Host Manager</a></li><li><a href="realm-howto.html">7) Realms and AAA</a></li><li><a href="security-manager-howto.html">8) Security Manager</a></li><li><a href="jndi-resources-howto.html">9) JNDI Resources</a></li><li><a href="jndi-datasource-examples-howto.html">10) JDBC DataSources</a></li><li><a href="class-loader-howto.html">11) Classloading</a></li><li><a href="jasper-howto.html">12) JSPs</a></li><li><a href="ssl-howto.html">13) SSL/TLS</a></li><li><a href="ssi-howto.html">14) SSI</a></li><li><a href="cgi-howto.html">15) CGI</a></li><li><a href="proxy-howto.html">16) Proxy Support</a></li><li><a href="mbeans-descriptors-howto.html">17) MBeans Descriptors</a></li><li><a href="default-servlet.html">18) Default Servlet</a></li><li><a href="cluster-howto.html">19) Clustering</a></li><li><a href="balancer-howto.html">20) Load Balancer</a></li><li><a href="connectors.html">21) Connectors</a></li><li><a href="monitoring.html">22) Monitoring and Management</a></li><li><a href="logging.html">23) Logging</a></li><li><a href="apr.html">24) APR/Native</a></li><li><a href="virtual-hosting-howto.html">25) Virtual Hosting</a></li><li><a href="aio.html">26) Advanced IO</a></li><li><a href="extras.html">27) Additional Components</a></li><li><a href="maven-jars.html">28) Mavenized</a></li><li><a href="security-howto.html">29) Security Considerations</a></li><li><a href="windows-service-howto.html">30) Windows Service</a></li><li><a href="windows-auth-howto.html">31) Windows Authentication</a></li><li><a href="jdbc-pool.html">32) Tomcat's JDBC Pool</a></li><li><a href="web-socket-howto.html">33) WebSocket</a></li><li><a href="rewrite.html">34) Rewrite</a></li></ul></div><div><h2>Reference</h2><ul><li><a href="RELEASE-NOTES.txt">Release Notes</a></li><li><a href="config/index.html">Configuration</a></li><li><a href="api/index.html">Tomcat Javadocs</a></li><li><a href="servletapi/index.html">Servlet Javadocs</a></li><li><a href="jspapi/index.html">JSP 2.3 Javadocs</a></li><li><a href="elapi/index.html">EL 3.0 Javadocs</a></li><li><a href="websocketapi/index.html">WebSocket 1.1 Javadocs</a></li><li><a href="http://tomcat.apache.org/connectors-doc/">JK 1.2 Documentation</a></li></ul></div><div><h2>Apache Tomcat Development</h2><ul><li><a href="building.html">Building</a></li><li><a href="changelog.html">Changelog</a></li><li><a href="http://wiki.apache.org/tomcat/TomcatVersions">Status</a></li><li><a href="developers.html">Developers</a></li><li><a href="architecture/index.html">Architecture</a></li><li><a href="funcspecs/index.html">Functional Specs.</a></li><li><a href="tribes/introduction.html">Tribes</a></li></ul></div></nav></div></div><div id="mainRight"><div id="content"><h2>Additional Components</h2><h3 id="Table_of_Contents">Table of Contents</h3><div class="text">
<ul><li><a href="#Introduction">Introduction</a></li><li><a href="#Downloading">Downloading</a></li><li><a href="#Building">Building</a></li><li><a href="#Components_list">Components list</a><ol><li><a href="#Full_commons-logging_implementation">Full commons-logging implementation</a></li><li><a href="#Web_Services_support_(JSR_109)">Web Services support (JSR 109)</a></li><li><a href="#JMX_Remote_Lifecycle_Listener">JMX Remote Lifecycle Listener</a></li></ol></li></ul>
</div><h3 id="Introduction">Introduction</h3><div class="text">
  <p>
    A number of additional components may be used with Apache Tomcat. These
    components may be built by users should they need them or they can be
    downloaded from one of the mirrors.
  </p>

  </div><h3 id="Downloading">Downloading</h3><div class="text">
  <p>
    To download the extras components open the
    <a href="http://tomcat.apache.org/download-80.cgi">Tomcat download page</a>
    and select "Browse" from the Quick Navigation Links. The extras components
    can be found in bin/extras.
  </p>
  </div><h3 id="Building">Building</h3><div class="text">

    <p>
      The additional components are built using the <code>extras</code> target
      of the standard Tomcat Ant script which is present in the source bundle of
      Tomcat.
    </p>

    <p>The build process is the following:</p>

    <ul>
    <li>Follow the <a href="building.html">build instructions</a> to build a
        Tomcat binary from the source bundle (note: it will be used by the build
        process of the additional components, but does not need to be actually
        used later on)</li>
    <li>Execute the command <code>ant extras</code> to run the build
        script</li>
    <li>The additional components JARs will be placed in the
        <code>output/extras</code> folder</li>
    <li>Refer to the documentation below about the usage of these JARs</li>
    </ul>

  </div><h3 id="Components_list">Components list</h3><div class="text">

  <div class="subsection"><h4 id="Full_commons-logging_implementation">Full commons-logging implementation</h4><div class="text">

  <p>
    Tomcat uses a package renamed commons-logging API implementation which is
    hardcoded to use the java.util.logging API. The commons-logging additional
    component builds a full fledged package renamed commons-logging
    implementation which can be used to replace the implementation provided with
    Tomcat. See the <a href="logging.html">logging</a> page for usage
    instructions.
  </p>

  </div></div>

  <div class="subsection"><h4 id="Web_Services_support_(JSR_109)">Web Services support (JSR 109)</h4><div class="text">

  <p>
    Tomcat provides factories for JSR 109 which may be used to resolve web
    services references. Place the generated catalina-ws.jar as well as
    jaxrpc.jar and wsdl4j.jar (or another implementation of JSR 109) in the
    Tomcat lib folder.
  </p>

  <p>
    Users should be aware that wsdl4j.jar is licensed under CPL 1.0 and not the
    Apache License version 2.0.
  </p>

  </div></div>

  <div class="subsection"><h4 id="JMX_Remote_Lifecycle_Listener">JMX Remote Lifecycle Listener</h4><div class="text">

  <p>
    The JMX protocol requires the JMX server (Tomcat in this instance) to listen
    on two network ports. One of these ports can be fixed via configuration but
    the second is selected randomly. This makes it difficult to use JMX through
    a firewall. The JMX Remote Lifecycle Listener allows both ports to be fixed,
    simplifying the process of connecting to JMX through a firewall. See the <a href="config/listeners.html">listeners</a> page for usage instructions.
  </p>

  </div></div>
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